Costilla County mailboxes and post offices

There are 9 United States Postal Service post boxes and offices available to the public in Costilla County. You can use any one of these locations to mail your letter or package via USPS. For additional collection boxes in neighboring communities, see the list of mailboxes in Colorado.

Public Collection Box
313 Highway 159
Directions
Public Collection Box
313 Forbes Park Rd
Directions
Public Collection Box
21844 Cty Rd P 6
Directions